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508881025 = 5220355241
BaseRepresentation
bin11110010101001…
…110100010000001
31022110112211112101
4132111032202001
52020233143100
6122255030401
715416263102
oct3625164201
91273484471
10508881025
11241282934
1212250b401
1381574543
144b8283a9
152ea1e86a
hex1e54e881

508881025 has 6 divisors (see below), whose sum is σ = 631012502. Its totient is φ = 407104800.

The previous prime is 508881011. The next prime is 508881031. The reversal of 508881025 is 520188805.

It can be written as a sum of positive squares in 3 ways, for example, as 93373569 + 415507456 = 9663^2 + 20384^2 .

It is not a de Polignac number, because 508881025 - 217 = 508749953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10177596 + ... + 10177645.

Almost surely, 2508881025 is an apocalyptic number.

It is an amenable number.

508881025 is a deficient number, since it is larger than the sum of its proper divisors (122131477).

508881025 is a wasteful number, since it uses less digits than its factorization.

508881025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20355251 (or 20355246 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 508881025 is about 22558.3914541795. The cubic root of 508881025 is about 798.3722240323.

The spelling of 508881025 in words is "five hundred eight million, eight hundred eighty-one thousand, twenty-five".

Divisors: 1 5 25 20355241 101776205 508881025